Exercise 29.1
Page no 29.9
Type 1
Question 1
If f(x)=x^{2}, find f^{\prime}(2)
Question 2
If f(x)=x^{3}+1, find f^{\prime}(3)
Question 3
If f(x)=x^{2}+2 x+7, find f^{\prime}(3)
Question 4
If f(x)=m x+c, find f^{\prime}(0)
Question 5
If f(t)=3 t^{2}+1, find f^{\prime}(1)
Question 6
Find the derivative of x at x=1
Question 7
Find the derivative of f(x)=3 x at x=2
Question 8
Find the derivative of 99 x at x=100.
Question 9
Find the derivative of x^{2}-2 at x=10
Question 10
Find the derivative of f^{\prime}(x)=3 at x=3.
Question 11
Find the derivative of the constant function f(x)=a for a fixed real number a.
Question 12
Find the derivative of \sin x at x=0.
Question 13
If f(x)=x^{3}+7 x^{2}+8 x-9, find f^{\prime}(4)
Question 14
If f(x)=x^{3}-2 x+1, show that f^{\prime}(2)=10 f^{\prime}(1)
Question 15
If f(x)=x^{2}-4 x+7, show that f^{\prime}(5)=2 f^{\prime}
(7 / 2)
Question 16
Find the derivative of the function f(x)=2 x^{2}+3 x-5 at x=-1 Also prove that f^{\prime}(0)+3 f^{\prime}(-1)=0
Question 17
For the function f given by f(x)=k x^{2}+7 x-4, f^{\prime}(5)=97 then find k
Question 18
for the function f given by f(x)=x^{2}+2 a x+5, f^{\prime}(1)=10, find a
Question 19
If f(x)=\frac{x-2}{x^{2}-3 x+2}, when x \neq 2 =1, when x=2 then find f^{\prime \prime}(2)
Type 2
Question 20
starting at time t=0, a particle moves along a line so that its position after t seconds is 5(t)=t^{2}-6 t+8 meters. Find its speed at time t=3 seconds.
Question 21
A particle moves along a line so that at time, t its position is s(t)=6 t-p^{2} What is its initial velocity ?
Question 22
A particle moves along a line so that its position at time t is s(t)=\frac{t^{2}+2}{t+1} units
Find its velocity at time t=3.
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